Parkinson's disease, dementia and Alzheimer are known to degrade Brain's functionality. But are there always negative side effects to disease? Or are there any good side effect that enhances the Brain functioning?

  • if it improved brain function it wouldn't be called a disease. Mar 11 '18 at 7:17
  • Well it would be if that disease weakens your heart but improves brain functioning as a side effect... Mar 11 '18 at 8:02
  • No such thing exists Mar 11 '18 at 8:04

The Savant Syndrome is the only syndrome where there is an enhancement of one particular brain function but at a heavy cost to other cognitive functions.

Savant syndrome is a condition in which someone with significant mental disabilities demonstrates certain abilities far in excess of average.[1][2] The skills at which savants excel are generally related to memory.[1] This may include rapid calculation, artistic ability, map making, or musical ability.[1] Usually just one special skill is present.[1]


Treffert, D. A. (2009). "The savant syndrome: An extraordinary condition A synopsis: Past, present, future". Philosophical Transactions of the Royal Society B: Biological Sciences. 364 (1522): 1351–7. doi:10.1098/rstb.2008.0326. PMC 2677584 Freely accessible. PMID 19528017.

Miller, LK (1999). "The savant syndrome: Intellectual impairment and exceptional skill". Psychological Bulletin. 125 (1): 31–46. doi:10.1037/0033-2909.125.1.31. PMID 9990844.

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